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Wiring through firewall

Discussion in '3rd Gen. Tacomas (2016+)' started by saywhuuh, Sep 4, 2018.

  1. Sep 4, 2018 at 11:13 PM
    #1
    saywhuuh

    saywhuuh [OP] Well-Known Member

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    I searched! So I hope I can get some knowledge and also save a few dollars having an install done.

    If I slit the main boot that goes through the firewall of my 3rd gen and run my wires through there, will my wire run down to where the wires come out in the cab down by your left foot? I was wondering if that boot went all the way down to the other side or if just acted like a grommet.
    Or will I have to cut the carpet and fish the wires out somewhere?

    Also, theres a pre made hole on the drivers side top of the engine bay, anyone ever use that one to run wires? I took out the plug and all I can see is carpet.

    Im wiring ditch lights.

    Thanks!
     
  2. Sep 4, 2018 at 11:14 PM
    #2
    m603holden

    m603holden @Koditten Pirate Radio member #063

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    I just went through the boot in the firewall. The Main one on the driver's side
     
  3. Sep 4, 2018 at 11:22 PM
    #3
    OnHartung'sRoad

    OnHartung'sRoad -So glad I didn't take the other...

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    somewhere in the Mojave Desert
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    ^me too.
     
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  4. Sep 5, 2018 at 5:08 AM
    #4
    zinger

    zinger Well-Known Member

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    Just punch a hole through with a small phillips head screw driver, you'll be able to see where it comes out on the drivers side. It goes straight through, no cutting necessary.
     
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  5. Sep 5, 2018 at 6:20 AM
    #5
    Pdog7

    Pdog7 Well-Known Member

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    OME BP-51 Nitto 285's C4 Low Pro Bumper Mobtown Skids
    There is an accessory nipple under the main bundle that I used. Get a flashlight and look under the big bundle. It's empty from the factory. Just snip off the tip to use. It's about the diameter of a sharpie.
     
  6. Apr 22, 2019 at 1:05 AM
    #6
    Ash_ley_082003

    Ash_ley_082003 New Member

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    How’d you snip off the tip? Or do you guys recommend to poke a hole instead?
     
  7. Apr 22, 2019 at 2:11 AM
    #7
    jmauvais

    jmauvais My momma sez Im speshul

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    It can be difficult to snip the tip, just drive a thick wire through or cut a little hole in the boot. Seal with silicone if you’re concerned about the size but it stays pretty tight.

    The carpet in the area folds back so you won’t have to cut it, fold it over to open, do your work, fold it back over to close it back up. You’ll see why I mean when you get in there
     
  8. Apr 22, 2019 at 3:16 AM
    #8
    Resqu2

    Resqu2 Well-Known Member

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    I used the boot where to two aluminum 9AC?) lines run through the firewall, right in behind the fuse box area. This truck was the easiest one I ever had to get wires from the bay to under the dash. I didn’t punch a hole or anything, just pushed real hard on my wires and they were inside in no time.
     
  9. Apr 22, 2019 at 3:41 AM
    #9
    Jofuze

    Jofuze Coonass with a Quicksand

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    I got my tip snipped right after birth. Also, was born with the hole so no need to poke a new one.
     
  10. Apr 22, 2019 at 3:53 AM
    #10
    Boghog1

    Boghog1 Jack of all trades, master of none.

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  11. Apr 22, 2019 at 6:53 AM
    #11
    95GLH

    95GLH 4WD Noob

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    Get a piece of polyethylene tubing from home depot, the hard stuff. Pro tip - it also makes running speaker wires through door boots easier. Quick spray of dry lube, wires pull right through. Then you pull the tubing off the wire. No mess, no poking sharpened wire through and possibly hitting something else. Takes a minute what used to take much longer.
     
  12. Apr 22, 2019 at 7:02 AM
    #12
    Gunshot-6A

    Gunshot-6A In God We Trust; All Others We Monitor

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    Coat hanger works well and I'm pretty sure has been the DIY standard for as long as mods have existed.
     
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  13. Apr 22, 2019 at 7:11 AM
    #13
    95GLH

    95GLH 4WD Noob

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    I have a kit for car stereo installs, and I can never find a hanger (the wife moved to plastic for some reason). I hated pulling a hanger through, because I would need to pinch with pliers or tape the cable on and it always pulled off coming through the boot. I've never looked back with tubing.
     
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  14. Apr 22, 2019 at 1:16 PM
    #14
    .jake

    .jake Well-Known Member

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    wire hanger worked for me too.
     
  15. Apr 22, 2019 at 1:28 PM
    #15
    Gunshot-6A

    Gunshot-6A In God We Trust; All Others We Monitor

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    tubing wouldn't cut it to get my big old switchpro wire and connector through, or my HAM cables.
     
  16. Apr 22, 2019 at 1:29 PM
    #16
    jspccicc

    jspccicc Well-Known Member

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    This is what I did and used the hole from the engine bay that has the hood latch release cable going through it and yes on the inside it is covered by a 3 way cut carpet inlet on the inside
     
  17. Apr 22, 2019 at 1:32 PM
    #17
    Gunshot-6A

    Gunshot-6A In God We Trust; All Others We Monitor

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    I've basically had to slice a hole in my grommet big enough for 3 fingers to get through.

    Switchpro panel cable in sheath
    HAM VHF/UHF cable x 2
    HAM UHF SATCOM coax x 2
    Ham power cables
    siren controller power
    Brake signal wire
    I'm sure I am forgetting a few.
     
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  18. Apr 22, 2019 at 1:34 PM
    #18
    Boghog1

    Boghog1 Jack of all trades, master of none.

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    than maybe disassemble the connectors and feed them through that way, I have run 0 gauge wire through grommets using a tube cut at an angle
     
  19. Apr 22, 2019 at 1:38 PM
    #19
    Gunshot-6A

    Gunshot-6A In God We Trust; All Others We Monitor

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    I didn't have the necessary items to do so or I would have.
     
  20. Apr 22, 2019 at 3:15 PM
    #20
    Jofuze

    Jofuze Coonass with a Quicksand

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    Yeah with all the wiring already being routed through from factory, its definitely a tight squeeze.
     

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